12 of 12 Senior JavaScript Developer Jobs in London

Our client in the Hospitality Industry is looking for a Senior JavaScript Developer to join their team. Join the dynamic team in the hospitality industry, where we are revolutionizing customer experiences with innovative and high-performing applications. We are looking for a Senior JavaScript Developer … Stay up to date with emerging technologies and industry trends to continuously improve our applications. Required Skills & Qualifications: 5+ years of experience as a JavaScript Developer. Strong proficiency in Node.js and React.js . Hands-on experience with unit and integration testing (e.g., Jest, Mocha, Cypress). Deep understanding of … JavaScript, ES6+, and modern front-end frameworks. Experience with RESTful APIs, GraphQL, and microservices architecture. Proficiency in Git, CI/CD pipelines, and Agile methodologies. Excellent problem-solving skills and attention to detail. Strong communication and collaboration skills. Work following SCRUM. Conditions: Location: London 2 days per week on More ❯

Senior JavaScript Developer – East Yorkshire | Hybrid | Product Team | React + TS Up to £55,000 + Bonus | Personal Development Budget | On-site Gym I’m hiring for a tech-first company building internal tools used daily across multiple departments - including design, manufacturing, operations, and customer experience. These … personal dev budget ✔ Bonus scheme + benefits + on-site facilities ✔ Genuinely supportive and ambitious engineering culture Looking for someone with: ✅ 4+ years of JavaScript/TypeScript experience ✅ Solid understanding of OOP, design patterns & problem solving ✅ Bonus: experience with advanced JS concepts, Node.js, or mentoring ️ Drop me a message More ❯

Senior Full Stack Developer/Engineer (JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and … funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues … to help scale and future proof the business. You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be More ❯

Free-Work UK. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Senior Full Stack Developer/Software Engineer (Java JavaScript React) London to £80k Well established trading brokerage is seeking a Senior Full … Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full … of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript/TypeScript, React and React Native front end work. Location/WFH: You'll join a team of finance entrepreneurs and technologists in City More ❯

Senior Netsuite Developer Our Client is a leading company who are looking to recruit a Senior Netsuite Developer with Javascript and SQL with extensive Netsuite OneWorld expertise. You will have a degree in Computer Sciences or equivalent certifications. Must have technical working knowledge of NetSuite … OneWorld Financials platform, including relevant NetSuite certifications. Ideally have at least 5 to 7 years experience of developing in Javascript and Oracle SQL in order to develop applications for Netsuite including a minimum 5 years in NetSuite OneWorld. Experience of full software delivery lifecycle including capturing business requirements, developing More ❯

complex processes, make smart decisions, and interact with the real world in ways that were previously impossible. Position Overview We are looking for a Senior Full Stack JavaScript Developer to lead the development of both client-side and server-side functionalities. In this role, you will focus … client-side and server-side code. Participate in code reviews and provide constructive feedback to team members. Minimum Requirements 5+ years of experience in JavaScript development. Proficiency in modern JS frameworks (React, Vue, Node.js). Experience in building complex web applications (full stack). Understanding of asynchronous request handling More ❯

deep sense of autonomy and accountability. At Alphix, your contributions directly shape the future of B2B marketing. The Role We are seeking an experienced Senior JavaScript full stack developer who loves modern web design and backend development, has a great eye for detail and is excellent problem … continuously update technical documentation to ensure clarity, knowledge sharing, and long-term maintainability of systems and features. Qualifications & Experience: Proven track record as a Senior Software Engineer in a SaaS environment. Deep technical expertise in: Databases such as MySQL, Singlestore, and BigQuery. Expertise working with third party data feed More ❯

Country: United Kingdom Location: London Sector: Software Developer Daily Rate: GBP £350 Per Day Negotiable Job Type: Contract Senior JavaScript/UI - AngularJS Contract Developer (Advertising/Media) Posted Monday, 28 September 2015 Key Responsibilities of the JS/UI Developer: Develop slick, modular, best … work within an exciting and innovative Advertising environment Chance to live and work in the heart of Central London If you are an experienced developer with a passion for technology looking for a new and exciting opportunity, then please do not hesitate to apply More ❯

of our team, you can explore what motivates and energizes your career goals: partnering with our customers, our communities, and each other. Job Description Senior Full Stack Developer/Engineering Lead - .NET & JavaScript US Bank are hiring a Senior Full Stack Developer who can design … applications that automate operations, streamline workflows, and support regulatory and risk reporting across the business. They will work closely with operations, data teams, and senior stakeholders to shape systems used daily by hundreds of users. Key Responsibilities Design and build robust full-stack applications using the Microsoft stack (.NET … Core, C#, JavaScript, EF) Architect and develop dynamic, configurable web-based platforms for internal business users Implement data visualization and reporting tools (D3.js, ECharts) to replace inefficient EUC solutions Create APIs and background services for real-time processing and automation Build UI components with Bootstrap, HTML/CSS, and More ❯

permit required: Yes col-narrow-right Job Views: 1 Posted: 23.05.2025 Expiry Date: 07.07.2025 col-wide Job Description: Who we are looking for A Senior Security Software Developer, who will safeguard the Business by uncovering exploits, architecting robust defences, and collaborating with teams to thwart sophisticated reverse engineers. More ❯

permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: Who we are looking for A Senior Security Software Developer, who will safeguard the Business by uncovering exploits, architecting robust defences, and collaborating with teams to thwart sophisticated reverse engineers. More ❯

across the team Help more junior developers by providing code reviews and organising team training Required Skills: 5+ Years experience A strong knowledge of JavaScript frameworks and modern best practices Ideally you will have experience with VUE, other technologies considered such as React An understanding of version control, debugging More ❯